Architecture of Active and Programmable Networks

Packet-switched networks enable sharing of transmission facilities so that packets may be efficiently transferred among the network nodes. Presentday networks perform only the processing necessary to forward packets toward their destination. Active and programmable networks represent a quantum jump in the research of packet-switched networks by providing a programmable interface in the intermediate network nodes. Active and programmable networks allow injection of customized code within routers and switches by active packets or open signaling.